Fizen eSIM
Broken eSIM? Free replacement, whole trip. From $0.33/day.
What it does
If your eSIM stops working mid-trip, we replace it one for one, free, for the rest of the trip. Data in 150+ countries from $0.33/day. Buy before you fly, nothing counts down until you land. Unused eSIMs are refundable. Backed by Tether.
The travel eSIM that takes returns: unactivated eSIMs can be bought back, failed ones replaced free for the whole trip. Pay with USDT or card. From $0.3/day.
Lower prices on travel data plans, with in-app credit to save even more. If your travel eSIM stops working or fails to activate, we replace it 1-for-1 free. Unused eSIMs can be returned. Most providers say all sales are final; we don't. USDT on Solana or BNB Chain. No FX fees, no card surcharges. A digital SIM that gets you online without a physical card. Store multiple plans on one phone and activate in minutes - perfect for travel. Find your destination and select a daily or unlimited plan. Check phone compatibility → Flying to China? Set up before you land. Google and WhatsApp keep working, no VPN. Claim your eSIM credit and use it on any destination within 12 months. Get your eSIM, pay…from fizen.io
Does the same job
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Compare your startup equity grant for free.
Commerce · 26d ago · equitybee.com
Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com